A variant of son of a bitch, used mostly by white male Southern Americans over the age of fourty, in the process of getting killed during a War event on the popular Korean game Ragnarok Online.
Sombitch is usually is pronounced in an ear splitting pitch that can be heard across the trailer park.
Positive connotation: "Did ya hear Billy Bob got laid by Sally last night. Whooeee! That be one lucky sombitch!"
Negative connotation: "Billy Bob you sombitch, you just slept with your own sister!"